baber/WOPTO huggingface dataset:
Patent GB-1112154-A (GB)
Title: Mine roof supports
Inventor: LEE ROGER DEMANT
IPC: E21D23/04
Filed: 1965-08-11
Abstract: 1,112,154. Advancing mine roof supports. ELECTRO-HYDRAULICS Ltd. 20 July, 1966 [11 Aug., 1965], No. 34459/65. Heading E1E. A mine roof support assembly comprising two frames such as disclosed in Specification 949,674 which are arranged in parallel for relative stepwise advance is characterized in that each frame 2, 3 is provided with a pivoted guide member 17, 19 and that the latter are interconnected by connecting means slidable with respect thereto and arranged to permit limited vertical movement of the roof boss relative to one another. The connecting means is in the form of scissor links 27, 28 which are adjustable by a turn buckle mechanism 26 and carry rollers such as 31c adapted to co-operate at the end of their run with abutments such as 25.
Patent GB-948409-A (GB)
Title: A method of melting a rod of semi-conductor material zone-by-zone
IPC: C30B13/30
Filed: 1961-09-26
Abstract: 948,409. Automatic control systems for zone melting. SIEMENS-SCHUCKERTWERKE A. G. Sept. 26,1961 [Oct. 19, 1960], No. 34474/61. Heading G3R. A method of producing a rod of a semi-conductor material comprises melting the rod zone-byzone by high frequency induction heating and controlling the method according to the diameter of the rod to produce a rod having a desired diameter. A rod 2 of semi-conductor material is held in two supports 3,4, movable relatively to one another, the rod being surrounded by a coil 5 of a high frequency heating apparatus, a capacitor 10 being connected in parallel with the coil 5 to form an oscillator circuit which is supplied with current from a high frequency source 8. The rod 2 and the coil 5 are movable relatively to one another so that the rod 2 is melted and resolidifies zone-by-zone. The resonant frequency of the circuit 5, 10 is equal to the frequency of a second high frequency source 13 to which the circuit 5, 10 is connected. The size of the rod 2 where it is surrounded by the coil 5 determines the energy taken up by the circuit 5, 10 from the source 8 and this energy produces a corresponding anode current in the high frequency source 13 with a corresponding volt drop across a resistor 13a. If the rod 2 is of the desired size the volt drop developed across the resistor 13a is equal to a reference voltage 15 and a polarized relay 16 remains unenergized. Should the rod 2 deviate from the desired size, a difference voltage appears between the voltage 15 and that developed over resistor 13a so that the relay 16 is energized to cause the motor 18 to run in the appropriate direction to drive the rack 21 so that the molten zone of the rod 2 is compressed or stretched according to the sense of the deviation of the rod from the desired size. Alternatively the voltage error may be used to vary the input voltage to the terminals 9 of the source 8 to regulate the energy taken up by the circuit 5, 10. In a second embodiment a series resonance circuit comprising the circuit 5, 10 in conjunction with a further capacitor is provided and the voltage thereacross is rectified and used in opposition to the reference voltage 15 to actuate the relay 16.
Patent GB-204296-A (GB)
Title: Typographical point counter
IPC: B41B3/06
Filed: 1922-12-18
Abstract: 204,296. Polygraphische Ges. Sept. 22, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Justifying type; keyboards.-In a type-setting machine the space values of the types are registered on a counter by variable escapement mechanism controlled from the keyboard and comprising fast and loose wheels 4, 16 on a longitudinallymovable shaft 1 provided with a pinion 6 engaging a rack 8 actuating the counter. The loose wheel 16 is provided with a series of teeth 16a co-operating with a series of stops 17 projected by the keys according to the space values, and with a series of longitudinally-movable stops 15 for engagement with teeth 4a on the fast wheel 4 to couple the two wheels together. The fast wheel 4 also co-operates with longitudinally-movable stops 9 in a fixed support to retain it in the adjusted positions, the stop 9 being located so that one of them coincides with a coupling-stop 15 for each space value. The shaft 1 is rotated by means of a cord 5a and a weight or the like, and is moved longitudinally from the keyboard by means of a rocker 13 and sliding angular bars 10 actuated by levers d and slide bars b from the keys, the bars 10 serving also to project the stops 17. The loose wheel 16 is returned by a spring 18 to a normal position determined by a stop 20 when the fast wheel is uncoupled, and is locked in position by a stop 21 moved longitudinally with the shaft 1.
Patent GB-784374-A (GB)
Title: Improvements in joints between metallic parts
IPC: F16B11/00
Filed: 1955-12-02
Abstract: An unsaturated polyester resin for bonding metallic parts used in building elements and also joined by screw bolts, [Group XXII], comprises the esterification product of polyhydric alcohols with polybasic carboxylic acids, optionally modified by the introduction of monohydric alcohols and monobasic carboxylic acids, in admixture with a vinyl compound.  The polyesters may be derived from ethylene glycol, propane diol, polyglycols, polycyclic polyhydric alcohols, maleic acid, fumaric acid, itaconic acid, the Diels-Alder adducts of maleic anhydride and cyclopentadiene, phthalic acid, tetrachlorphthalic acid, adipic acid and sebacic acid.  These unsaturated polyesters are mixed with 10 to 90 per cent by weight of a polymerizable vinyl compound, e.g. styrene, methylstyrene, chlorostyrene or an allyl ester.  Maleic or fumaric acid may also be present.  To harden the polyester resin a polymerization catalyst is added, e.g. cyclohexanone or methyl ethyl ketone peroxide, preferably dissolved or made into a paste with cyclohexanone or dimethyl phthalate.  The action of the polymerization catalysts is preferably promoted by the addition of accelerators, e.g. cobalt naphthenate. Fillers, e.g. chalk, talc, quartz flour, shale flour and also colour pigments or polymeric thickening agents may be added.  Specification 766,666 is referred to.
Patent GB-838146-A (GB)
Title: Improvements relating to electric smelting furnaces provided with self-baking electrodes
IPC: H05B7/105
Filed: 1957-11-06
Abstract: 838,146. Self-baking furnace electrodes. ELEKTROKEMISK A.S. Nov. 6. 1957 [Nov. 8, 1956]. No. 34641/57. Class 39(3) A self-baking electrode in a smelting furnace comprises carbonaceous electrode material enclosed in a consumable tubular metallic casing with a wall which is corrugated or formed with indentations or protuberances to afford a reduced surface area of contact with a surrounding current-carrying water-cooled electrode holder whereby the electrode is lowered. The casing wall may have narrow internal ribs projecting a short distance inwardly. The wall of a cylindrical casing may be formed with longitudinal corrugations 12 providing alternate continuous ribs and channels extending the Whole length of the casing either parallel to its axis or in helical form around its surface. The casing may however be formed with discontinuous ribs 19 staggered around its circumference and extending longitudinally or helically. Hot furnace gases passing up through channels between the ribs and the electrode holder help to bake the electrode material. The casing may be formed with hemispherical dimples 20 directed inwardly and these may be disposed between the longitudinal or helical ribs.
Patent GB-373579-A (GB)
Title: Armoured masonry
IPC: E04G23/06
Filed: 1930-11-18
Abstract: 373,579. Underpinning buildings. LAZO, F. L., 50, Calle de Dinamarca, Mexico. Nov. 18, 1930, No. 34674. Convention date, Nov. 18, 1929. Void [Published under Sect. 91 of the Acts]. [Classes 20 (ii) and 20 (iv).] Masonry structures are reinforced by metal insertions in the walls before they are underpinned in order to obviate the use of needling or other falsework. Vertical and horizontal grooves on both faces are cut into the masonry at the lower parts of the walls and structural metal bars are cemented into the grooves and connected by cross-bolts a, n, the bars being joined on each side by straps vch disposed horizontally and vertically to form a reinforced-concrete reinforcement for the building which can be supported by reinforced-concrete uprights provided with reinforced-concrete extension feet. The upright supports are positioned before excavation under the building or the cutting of the wall occurs. Mesh wirework m may be used with the concrete to form a binding agent.
Patent GB-894454-A (GB)
Title: Improvements relating to electrical fuel cells
Inventor: PERRY HENRY JAMES HARKNESS
IPC: H01M8/06
Filed: 1959-10-13
Abstract: 894,454. Fuel cells. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 5, 1960 [Oct. 13, 1959], No. 34692/59. Class 53. A fuel cell of the hydrogenoxygen type uses a desiccant to remove water vapour from the cell, either by circulating the excess hydrogen through a desiccator or incorporating the desiccant in a portion 21 of the cell. An envelope 22 of a material that melts at the cell operating temperature prevents de-watering of the electrolyte 7 during shelflife. The desiccant may be replaced by a substance, e.g. a hydride of an alkali or an alkaline earth metal such as hydrides of lithium and calcium, that reacts with water vapour to evolve hydrogen.
Patent GB-1353207-A (GB)
Title: Imaging system
IPC: G03G21/00
Filed: 1971-07-23
Abstract: 1353207 Electro-photography XEROX CORP 23 July 1971 [27 July 1970] 34700/71 Heading G2H After transfer of a developed image consisting of liquid developer from a photo-conductive surface, residual liquid developer is removed from the surface with a cleaning liquid which is immiscible with the liquid developer. The liquid developer may be water miscible or immiscible and may be applied from a patterned roll. The cleaning liquid may contain a surface active agent or a Lewis acid or base. As shown, a photoconductive drum 10 is cleaned after charging, exposing, developing and transferring steps by means of a fibrous web 17 passing countercurrently over the surface of the drum from a reel 19 to a reel 18, the web being wetted by a sponge roll 24 partially immersed in cleaning liquid 25. Residual liquid is evaporated by a lamp 26. Various materials are specified.
Patent GB-801876-A (GB)
Title: Blindstitch sewing machine
IPC: D05B1/24
Filed: 1956-11-13
Abstract: 801,876. Sewing machines. SINGER MANUFACTURING CO. Nov. 13, 1956 [Nov. 14, 1955], No. 34728/56. Class 112. The work support 21 in a blindstitch sewing machine is pivoted at 22 to the frame 11 and is biased by a spring 25 towards a fixed throat plate 15, a movable stop member 33 by abutting the work support determines the position of the latter, and a control member, operatively connected with the stop member and the frame, is adapted to be moved bodily and also to be varied in length, for effecting coarse and fine adjustment, respectively, of the position of the stop member. The latter is provided on a lever 32 which is also pivoted at 22 and has an extension 34 formed with a notch 35 embracing a pin 36 which is carried by a stud 37 screwed into the lower end of a control rod 38 slidably and rotatably journalled in the frame. Rod 38 is formed with a series of circumferential teeth 41 constituting a rack which is engaged by a gear quadrant 42. A lever 45, connected by a shaft 43 to gear 42, carries a screwed stud 50 which passes through an arcuate slot 49 in a fixed plate 46 and receives a handle 51, whereby lever 45 may be swung to move rod 38 axially for effecting coarse adjustment of stop 33. When handle 51 is screwed inwardly to clamp lever 45 against plate 46 for fixing rod 38 axially, a hand-wheel 52 at the upper end of the latter may serve to rotate rod 38 to move stud 37 axially for effecting fine adjustment of stop 33. Specification 744,070 is referred to.
Patent GB-467420-A (GB)
Title: A new or improved cooler for oil and other liquids
IPC: F28D7/16
Filed: 1935-12-14
Abstract: 467,420. Radiators for aircraft &c. BELAIEFF, J. F., DELANEY, C. T., and GALLAY, Ltd. Dec. 14, 1935, No. 34758. [Class 29] A liquid cooler, e.g. for cooling the lubricating-oil of an aircraft engine, comprises groups of air-cooled tubes b, g, of different diameters connected between headers c, one of which is provided with an inlet d and the other with a valved relief pipe f and an outlet pipe e. When the oil is cold the pressure in the cooler rises and the oil passes through the relief pipe f, while during normal operation the oil flows in series through the groups of tubes from the inlet to the outlet pipe. As the oil warms after being cooled the air passing over the tubes g warms the oil in the smaller tubes b and promotes now therethrough. The groups of tubes may be formed as independent units and then assembled together.
Patent GB-919225-A (GB)
Title: Improvements of and relating to material testing machines for producing pulsating loads
IPC: G01N3/30
Filed: 1960-10-13
Abstract: 919,225. Testing machines. MASCHINENFABRIK AUGSBURG - NURNBERG A.G. Oct. 13, 1960 [Nov. 27, 1959], No. 35047/60. Class 106 (2). An hydraulically operated testing machine producing pulsating loads comprises an accumulator 1 supplied by a pump 10 and a testing cylinder 5 which is connected alternately, through a rotating slide 3, to accumulator 1 and to a relieving pipe 8. A piston 6 in cylinder 5 engages the test piece 7. In order to produce a steep pressure wave, Fig. 5, the tubes 2, 4 are made short and of large diameter and the crosssections of the slide 3 are limited. The slide may be formed as a double piston slide, Fig. 6, and the slide may be preceded by a selector slide allowing, for example, only every second or third impulse to pass.
Patent GB-468210-A (GB)
Title: Improvements in and relating to the manufacture of baker's goods
IPC: A21D2/18
Filed: 1935-12-18
Abstract: An accessory baking agent consists of a homogeneous mixture of fat, preferably animal fat, fermentable sugar such as dextrose and milk protein.  Preferably, 8-20 parts by weight of milk calculated as dried milk, 3-12 parts of fat and 2-10 parts of sugar are used.  The fat which may be lard, suet, &c. may be mixed with whole or skim milk and the mixture concentrated and then, together with the sugar, sprayed for example in an atomization drier.  Diastatically active substances such as malt flour or meal or malt extract and substances such as rolled potato flour or hydrolyzed rice flour which have a high absorption power for water may also be added.  Reference has been directed by the Comptroller to Specification 444,164.ALSO:In making bakers' goods there is incorporated in the mix, which contains flour and the proportions of such ingredients as milk, fat and sugar required to give the goods their normal characteristics, an accessory baking agent consisting of a homogeneous mixture of fat, preferably animal fat, fermentable sugar, such as dextrose, and milk protein in such proportion that the goods retain their characteristic properties, greater volume, better porosity and more lasting freshness being obtained and satisfactory goods being produced even when using flour poor in gluten.  Diastatically active substances such as malt flour or meal or malt extract may also be added.  In preparing the baking agent, preferably 8-20 parts by weight of milk calculated as dried milk, 3-12 parts of fat and 2-10 parts of sugar are used. The fat which may be lard, suet &c., may be mixed with whole or skim milk and the mixture concentrated and then together with the sugar sprayed for example in an atomization drier. Substances such as rolled potato flour or hydrolyzed rice flour which have a high absorptive power for water may also be added.  Reference has been directed by the Comptroller to Specification 444,164.
Patent GB-736342-A (GB)
Title: Apparatus for lubricating polish rods in oil well apparatus
Inventor: LISTER ROSCOE CONKLIN
IPC: E21B33/08
Filed: 1953-12-17
Abstract: 736,342. Lubricating. HUBER CORPORATION, J. M. Dec. 17, 1953, No. 35170/53. Class 12 (3). Packing material in a stuffing-box 12, Fig. 1, through which extends a polish rod 14 of oil well apparatus, is lubricated by oil from a reservoir 20, which is supplied with oil from the delivery pipe 16 by way of a stand pipe 18 extending almost to the top of the reservoir. Oil overflows from the reservoir back to the pipe 16 by way of pipe 22. At the bottom of the reservoir there is a pipe 32 leading to a flanged perforated oil ring 34 located in the stuffing-box 12 between two sections 40, 42 of packing material. In the construction shown in Fig. 2, a section 60 of the oil delivery pipe extends through the reservoir 20 which is integral with the stuffing-box 12. The section has an opening 64 at the top of the section and two lateral openings 66 which communicates with the interior of the reservoir 20.
Patent GB-1020756-A (GB)
Title: System for measuring the period of a nuclear reactor using frequency conversion or period conversion
IPC: G21C17/14
Filed: 1962-09-14
Abstract: 1,020,756. Reactors. NIHON GENSHIRYOKU KENKYU SHO. Sept. 14, 1962 [Nov. 7, 1961], No. 35216/62. Heading G6C. The period of a nuclear reactor in which the power level changes slowly, is derived from the measurement of the neutron flux at spaced intervals. Electrical signals having frequencies proportional to the natural logarithm of the neutron flux are derived and applied in the expression:- where n is the neutron flux. The denominator may be written, Hence, using the signals:- frequency f 1  = K 1  ln n 1  frequency f 2  = K 1  ln n 2  the period of the reactor may be written, Alternatively the difference of the electrical signal period may be employed in place of the frequency change, #f. The frequencies of two oscillators are controlled by reactor flux signals and the instants at which the frequencies are selected are predetermined by a separate control circuit. The latter controls a gate circuit which passes on to a digital display circuit the value #f and the corresponding time interval.
Patent GB-752190-A (GB)
Title: Improvements in and connected with root-crop diggers
IPC: A01D17/10
Filed: 1954-12-06
Abstract: 752,190. Digging root-crops. MYERS, G. T., and MYERS, B. T. Dec. 6, 1954, No. 35257/54. Class 6 (3). A root-crop digger comprises a frame 11 carrying a share feeding excavated material to a chain-elevator 16 which discharges on to a laterally-inclined jigging tine-frame 22 which is oscillated about a longitudinal axis. The tineframe is carried by arms 28 on a sleeve 29 oscillatably rotatable about a shaft 30 through a cam 40 and linkage 37, 33. The inclination of the tine-frame to the arms 28 is adjustable and the amplitude of its oscillation is variable by adjustting the linkage 33, 37. The frame 11 is carried on tractor draught-links 14, 15 and the cam and elevator are driven from the power take-off 20 through jointed shafts 18, 19 and a gearbox 17. The share 21 is flanked by combined discs and land-wheels 42 adjustably mounted on slotted standards 46.
Patent GB-988730-A (GB)
Title: Improvements in furniture and like joints
IPC: E04B1/61
Filed: 1962-09-17
Abstract: 988,730. Furniture joints; cabinets. H. INGOLD. Sept. 17, 1962 [May 25, 1962], No. 35305/62. Headings A4B and A4W. The cupboards of an arrangement of storage cupboards movable on rails have inner side walls 1 bent to form a U-shaped profile with slots in the inner strip 9 to receive hooks 14 formed on an inwardly extending strip on a rear wall 2 and the outer side walls 1<SP>1</SP> have hooks 17 which engage in recesses in tabs 10 at right angles to strip 9, the hooks 14, 17 having wedge-shaped noses to lock the parts together when they are moved parallel to the surface of the member.
Patent GB-414283-A (GB)
Title: Improvements in or relating to moulds for chocolate-casting machines
IPC: A23G1/22
Filed: 1933-12-15
Abstract: 414,283. Moulding chocolate in endlesschain machines. BOGGILD, C. B. K., and JACOBSEN, M., (trading as BOGGILD & JACOBSEN), 10, Tolbodgade, Copenhagen. Dec. 15, 1933; No. 35368. Convention date, July 18. [Class 87 (ii).] In endless-chain machines for moulding chocolate, in which the moulds are supported by frames pivoted to the carrying chains, the moulds 3 are provided with unequal-legged U-shaped flanges 6 which engage the hooked upper edges of the frames 5 and are wider than the frames, so that scrapers can operate to remove excess material clear of the frames without contacting with the chains and other working parts of the machine.
Patent GB-325607-A (GB)
Title: A device for attaching to the holder or case of booklet matches
IPC: A24F27/12
Filed: 1928-12-01
Abstract: 325,607. Dunn, R. E. Dec. 1, 1928. Packing matches.-A booklet match holder has a container a for the used matches combined with it. The container may be either integral with or secured to the booklet. Specification 322,732 is referred to.
Patent GB-507771-A (GB)
Title: Improvements relating to apparatus for delivering measured quantities of liquid by volume from bottles or similar vessels
IPC: G01F11/26
Filed: 1937-12-22
Abstract: 507,771. Delivering measured quantities of liquid. CONRADE, H. G., and PAYNE, L. T. Dec. 22, 1937, No. 35447. [Class 106 (v)] A device fur delivering measured quantities of fruit juice or other liquid from a tilted bottle or other vessel comprises a substantially spherical or hemispherical sheet metal or other body a, Fig. 1, having a rearwardly extending tube i fitted with a cork j inserted in the neck of the bottle, a syphon device formed by a discharge tube h and a tube g carried by a partition b in the body a, a partition d on the body forming a duct by which air admitted through an aperture f is conveyed to the top of the measuring chamber formed between the partitions b, d, and an air tube m extending from the tube g to the interior of the bottle. In the tilted position liquid flows from the bottle through an aperture c in the partition b to the bottom of the measuring chamber. When the level of the liquid reaches the top of the tube h syphon action starts and the measuring chamber is emptied until the liquid level falls below the edge n of the tube g. The operation is then repeated. When the bottle is vertical residual liquid in the measuring chamber is returned to the bottle. In a modification shown in Fig. 4, a weir plate P is arranged in the measuring chamber in front of the aperture c and a baffle r is provided at the entrance to the air tube m. Spaced apertures s may be provided in the tube m to accelerate the passage of air and to enable a succession of measures to be obtained when the bottle is nearly empty without returning it to the upright position. Specification 362,474 is referred to.
Patent GB-956104-A (GB)
Title: Improvements in or relating to a caster comprising a locking device for locking the pivoting and rotary movement of the wheel
IPC: A61G7/00
Filed: 1962-09-18
Abstract: 956,104. Castors. TENTE ROLLEN G.m.b.H., [trading as TENTE ROLLEN G.m.b.H. & COMPANIE]. Sept. 18, 1962 [Sept. 28, 1961], No. 35558/62. Heading A4U. [Also in Division F2]. A castor comprises a device for locking the pivoting or rotary movement of the wheel 1 wherein an expanding spring stirrup 11 bears against the wheel surface 1a and teeth 8a of the ball cup 8 on the castor holder when its arms 11a and 11b are expanded by movement of the plate 15 on the foot-operated toggle 4. The stirrup 11 is silently mounted at its apex 12 by a pivot 13 of polyamide in the cavity 3 of the castor fork 6. The spring 11 has a bent end 14 which arrests plate 15 and engages teeth 8a, and a slideway 19 to retain the nose of the plate. The toggle 4 is a single die casting.